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What's my Last Digit?

Number Theory Level 4

\[\left \lfloor \frac { { 10 }^{ 2000 } }{ { 10 }^{ 100 }+3 } \right\rfloor \]

Find the unit digit of the expression above.

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Excel in math and science

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It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Ellen Shang

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